DNA is an important molecule for life. It is much like a manual telling the instructions of how bodies develop and function. DNA is the acronym for deoxyribonucleic acid.
What is DNA made of? DNA is a molecule of nucleotides, such as adenine, thymine, cytosine, and guanine. They are shown by their first letter:
A- Adenine
T- Thymine
C- Cytosine
G- Guanine
The backbone that holds the nucleotides are called phosphate and deoxyribose. The nucleotides are known as bases.
Human body has about 210 different kinds of cells, which does a different job makes the body work. Blood cells, bone cells, and the cells that make up our muscles are just three types of cells. DNA holds the instructions on what cells have to do.
Shape of DNA molecule
DNA looks like very thin strings under a microscope, but actually it has a specific shape called a double helix. This double helix is the backbone which holds the DNA together. There are two strings twisting together. The helix backbones hold the nucleotide represented by the letters A, T, C, and G. A certain kind of nucleotides fit each other. They are like puzzle pieces, because Adenine links only with Thymine and Guanine links only with Cytosine. …show more content…
Because the molecule was in the nucleus of the cell he named it nuclein. He also found out that DNA carries genetic information.
Later in 1952, Alfred Hershey and Martha Chase confirmed the important role of DNA in genetics through Hershey-Chase experiment. In 1953, James D. Watson and Francis Crick made the first correct double-helix model of DNA structure. They demonstrated that the genetic code is based on non-overlapping triplets of bases, which are called codons.
Interesting Facts about
What is DNA made of? DNA is a molecule of nucleotides, such as adenine, thymine, cytosine, and guanine. They are shown by their first letter:
A- Adenine
T- Thymine
C- Cytosine
G- Guanine
The backbone that holds the nucleotides are called phosphate and deoxyribose. The nucleotides are known as bases.
Human body has about 210 different kinds of cells, which does a different job makes the body work. Blood cells, bone cells, and the cells that make up our muscles are just three types of cells. DNA holds the instructions on what cells have to do.
Shape of DNA molecule
DNA looks like very thin strings under a microscope, but actually it has a specific shape called a double helix. This double helix is the backbone which holds the DNA together. There are two strings twisting together. The helix backbones hold the nucleotide represented by the letters A, T, C, and G. A certain kind of nucleotides fit each other. They are like puzzle pieces, because Adenine links only with Thymine and Guanine links only with Cytosine. …show more content…
Because the molecule was in the nucleus of the cell he named it nuclein. He also found out that DNA carries genetic information.
Later in 1952, Alfred Hershey and Martha Chase confirmed the important role of DNA in genetics through Hershey-Chase experiment. In 1953, James D. Watson and Francis Crick made the first correct double-helix model of DNA structure. They demonstrated that the genetic code is based on non-overlapping triplets of bases, which are called codons.
Interesting Facts about